Name a common sign of periodontitis that an assistant should look for.

Gum bleeding during probing or brushing is a key sign of periodontitis because it indicates inflammation and damage to the gum tissue, which are hallmarks of this condition. Periodontitis occurs when bacteria in plaque cause an immune response that leads to the destruction of the supporting structures of the teeth, including the gums.

When probing the gums, dental professionals may notice that the gum tissue is tender and bleeds, reflecting an active inflammatory process. This bleeding occurs as the inflammation disrupts the normal attachment of gums to teeth, leading to pocket formation and, ultimately, loss of attachment. Monitoring for this sign is crucial for early detection and management of periodontitis, as it can help prevent progression to more severe stages of periodontal disease, which can result in tooth loss and other complications.

While swollen gums, bad breath, and tooth discoloration can also be associated with periodontal disease, the presence of bleeding specifically indicates that there is significant involvement of the soft tissue and should prompt further evaluation and intervention.